- Sabotage Prevention Services, Portland
- Safe & Vault, Portland
- Safes & Vaults Movers, Portland
- Safety & Security Systems & Consultants, Portland
- Safety Equipment & Clothing Manufacturers, Portland
- Safety Equipment & Supplies, Portland
- Sailing Instructions, Portland
- Sails, Portland
- Sales & Marketing Consultant, Portland
- Sales Promotion & Counseling Service, Portland
- Sales Promotion Service, Portland
- Salvage Yards, Portland - Auto, Motorcycle, Boat, Trucks, etc
- Salvage Yards, Junk Yards & Wrecker Service, Portland
- Salvation Army, Portland
- Sand Gravel & Aggregate, Portland
- Sandblasting, Portland - General Contractors
- Sandblasting Equipment & Supplies, Portland
- Sandwich Shop Restaurants, Portland
- Satellite & Cable TV Equipment & Systems, Portland
- Satellite Communication Downlinking & Uplinking, Portland
- Satellite Descrambling & Programming Service, Portland
- Satellite Dish Antennas & Equipment Dealers, Portland
- Satellite TV Service, Portland
- Sauna Equipment, Portland
- Savings & Loan Associations, Portland
- Savings Banks, Portland
- Sawdust & Shavings, Portland
- Sawmill & Planing Mills, Portland
- Sawmill Equipment & Supplies, Portland
- Sawmill Supplies & Equipment Repair, Portland
- Sawmill, Paper & Woodworking Supplies, Machinery & Equipment, Portland
- Saws Commercial & Industrial, Portland
- Scaffolding & Aerial Lifts, Portland
- Scales Retail, Portland
- Scanning Service, Portland
- Scholarships & Financial Aid, Portland
- School & College Advisors, Portland
- School - Catholic, Portland
- School - Christian, Portland
- School Furniture, Portland
- School Gifted & Accelerated, Portland
- Schools For The Physically Challenged, Portland
- Schools Montessori Instruction, Portland
- Science & Research, Portland
- Scientific & Laboratory Equipment & Instruments, Portland
- Scientific & Research Professionals, Portland
- Scientific Equipment, Portland
- Scientific Equipment & Services, Portland
- Scientific Services, Portland
- Scientific Services, Portland
- Scientology Churches, Portland
- Scissors & Shears, Portland
- Scrap & Waste Machinery, Portland
- Scrap & Waste Materials, Portland
- Scrap Film, Portland
- Scrapbooks & Scrapbook Supplies, Portland
- Screen Houses, Portland
- Screen Printing, Portland
- Screen Printing Supplies & Equipment, Portland
- Screening & Sifting Equipment & Services, Portland
- Screens Doors & Windows, Portland
- Sculptors, Portland
- Seafood Restaurants, Portland
- Sealants Retail, Portland
- Sealcoating, Portland - Asphalt Sealcoating & Paving
- Seals, Portland - Hermetic, Hydraulic, Mechanical, Metal, Oil, Grease, etc
- Seals Notary & Corporation, Portland
- Seals O Ring, Portland
- Search & Rescue, Portland
- Searchers Of Records, Portland
- Seawall & Shoring Contractors, Portland
- Secondary Schools, Portland
- Secretarial & Court Reporting Services, Portland
- Security & Commodity Brokers, Portland
- Security & Commodity Exchanges, Portland
- Security & Surveillance System & Equipment, Portland
- Security Alarm Systems - Home & Business, Portland
- Security Brokers & Dealers, Portland
- Security Consultants, Portland
- Security Control Systems & Monitoring, Portland - Polygraph, Lie Detector, CCTV, Fire Sensor Equipment, Etc
- Security Guard & Patrol Service, Portland - Bodyguard, Guard Dogs, Etc
- Security Investigative Services, Portland
- Security Services, Portland
- Seeds & Bulbs Wholesale & Growers, Portland
- Self Defense Programs, Portland
- Semi Precious Metals, Portland
- Semi-Precious Stones, Portland
- Semiconductor Manufacturers Supplies & Equipment, Portland
- Semiconductors & Equipment, Portland
- Senators Elected, Portland
- Senior Citizen Counseling, Portland
- Senior Citizens Centers & Meals, Portland
- Senior Citizens Housing, Portland
- Senior Citizens Information & Services, Portland
- Senior Citizens Service & Health Organizations, Portland
- Septic Tank Installation & Repair, Portland - Septic Systems
- Septic Tank Pumping & Cleaning, Portland - Septic Systems
- Septic Tanks & Septic Systems Contractors, Portland - Installation, Repair, Service, Cleaning & Pumping Septic Tanks
- Septic Tanks & Systems, Portland - Wholesale, Dealers & Suppliers
- Septic Tanks & Systems Contractors & Designers, Portland
- Service & Gas Station Equipment & Services, Portland
- Service Establishment Supplies & Equipment, Portland
- Service Industry Manufacturers Machinery, Portland
- Service Station Equipment - Installation, Repair & Maintenance, Portland
- Service Station Marine, Portland
- Services Allied With The Exchange Of Securities & Commodities, Portland
- Sewer & Drain Cleaning & Repair, Portland - Drain Cleaner & Installation Services
- Sewer Cleaning Equipment & Supplies, Portland - Sewer Builders
- Sewer Companies, Portland
- Sewer Construction Contractors, Portland - Sewer Line, Pipe Installation & Repair Services
- Sewing & Yarn Stores & Supplies, Portland
- Sewing Buttons, Portland
- Sewing Contractors, Portland
- Sewing Machine Repair & Service, Portland
- Sewing Machines, Equipment & Supplies, Portland
- Sewing Ribbons, Portland
- Sewing Thread, Portland
- Sex Counseling & Therapy, Portland
- Sharpening Service, Portland
- Sheet Metal, Portland
- Sheet Metal Contractors, Portland - Sheet Metal Fabrication
- Sheet Metal Fabricators & Ductwork Contractors, Portland
- Sheet Metal Work - Aluminum, Tin, Stainless Steel, etc, Portland - Sheet Metal Products
- Shelter Associations, Portland
- Shelving & Shelves, Portland - Metal, Steel, Wire & Glass Shelving Units & Storage - Wall Shelves
- Shelving Equipment, Portland
- Ship & Boat Building & Repairing, Portland
- Ship & Yacht Broker & Agent, Portland
- Ship Chandlers, Portland
- Ship Service Supplies, Portland
- Shipping Companies, Portland
- Shipping Service, Portland
- Shirts & T-Shirts, Portland
- Shoe Repair & Shoeshine Parlors, Portland
- Shoe Repair Shops, Portland
- Shoe Repair Supplies & Equipment, Portland
- Shoe Store - More, Portland
- Shoe Stores, Portland - Mens, Womens & Kids Shoes
- Shooting & Target Ranges, Portland
- Shopping & Shopping Services, Portland
- Shopping Services, Portland
- Shoring Contractors, Portland
- Shutters - Interior & Exterior, Portland - Wood, Vinyl, Window, Plantation Shutters, etc
- Siding Contractors, Portland - Vinyl Siding, Wood, Metal & Aluminum Siding Contractors - Installation & Repair
- Siding Materials, Portland
- Sightseeing Tours, Portland
- Sign Equipment & Supplies, Portland
- Sign Hanging & Installation Service, Portland - Signs Erectors & Hangers
- Sign Products & Services, Portland
- Sign Supplies & Sign Making Equipment, Portland
- Signs, Portland
- Signs & Advertising Specialties Manufacturers, Portland
- Signs - Electronic, Portland
- Silicones & Silicone Products, Portland
- Site Locating Consultants, Portland
- Skateboards & Equipment Shops, Portland - Skateboarding Supplies
- Skating Rink & Hockey Operation Services, Portland
- Skating Rinks & Instructions, Portland
- Ski & Snowmobile Clubs, Portland
- Ski Centers, Portland
- Ski Equipment Repair, Portland
- Ski Resorts, Portland
- Ski Shops - Equipment & Supplies Sales & Rental, Portland
- Ski, Snowboard & Snowmobile Shop - Equipment Rental & Services, Portland
- Skin Care & Cosmetology Salons, Portland
- Skin Care Products & Treatments, Portland
- Skylights, Portland - Skylight Shades, Blinds, Covers & More
- Slate, Portland
- Sleds, Snowboards & Snowshoes Shops, Portland - Snow Sleds, Toboggans, Helmets, Boots, Goggles, Clothing, Gear & More
- Sleep Disorders Treatment & Information Centers, Portland
- Sleep Doctors, Portland - Specialists, Physicians & Surgeons (Sleep Medicine)
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- Small Appliances, Portland
- Small Business & Office Equipment Repair Services, Portland
- Small Business Services, Portland
- Smelters & Refiners Precious Metals, Portland
- Smoked Meat Restaurants, Portland
- Smoking Cessation Treatment Centers & Information Services, Portland
- Smoothie Restaurants, Portland
- Snack Foods, Portland
- Snacks & Desserts, Portland
- Snow Removal Services, Portland - Snow Plow Service
- Soaps & Detergents, Portland
- Soccer Clubs, Portland
- Soccer Equipment & Supplies, Portland
- Social & Human Services Autism Services, Portland
- Social Clubs & Organizations, Portland
- Social Security And Disability Attorneys & Lawyers, Portland
- Social Security And Disability Lawyers & Attorneys, Portland
- Social Security Counselors & Representatives, Portland
- Social Services & Welfare, Portland
- Social Workers & Services, Portland
- Societies & Foundation Associations, Portland
- Sod & Sodding Service, Portland
- Sod Farms, Portland
- Soil Preparation Services, Portland
- Soil Testing Labs, Portland - Concrete Testing
- Solar Energy Companies - Contractors, Portland - Solar Panel Installation - Solar Power Systems
- Solar Energy Equipment & Systems - Service & Repair, Portland - Solar Power Systems
- Solar Energy Research Development & Design, Portland
- Solar Equipment, Portland
- Solar Products & Services, Portland
- Solariums & Garden Rooms, Portland
- Sororities, Portland
- Sound Systems & Equipment Rental & Leasing, Portland
- Sound Systems & Recording Equipment, Portland
- Sound Systems, Microphones & Equipment, Portland
- Soup & Salad Restaurants, Portland
- South American Restaurants, Portland
- Souvenirs & Favours, Portland
- Soybean Production, Portland
- Spare Rib Restaurants, Portland
- Speaker Equipment, Portland
- Speakers Manufacturers, Portland
- Special Coatings, Portland - Protective Coatings
- Special Dies Tools Jigs & Fixtures Manufacturers, Portland
- Special Education & Care, Portland
- Special Events & Party Supply Rental, Portland
- Special Events Photographers, Portland
- Special Interest Associations, Portland
- Special Interest Schools Or Instruction, Portland
- Special Needs Transportation, Portland
- Speciality Food Stores, Portland
- Specialty Animal Services, Portland
- Specialty Communication Companies & Services, Portland
- Specialty Goods Storage, Portland
- Specialty Rental Services, Portland
- Specialty Stores, Portland
- Specialty Vehicle Rental & Leasing, Portland
- Speech & Hearing Specialists, Portland
- Speech Pathologists, Portland - Speech & Language Therapy
- Spiritual Church, Portland
- Spiritualists, Portland
- Sport & Entertainment Associations, Portland
- Sporting & Recreational Camps, Portland
- Sporting Goods Equipment Rental, Portland
- Sporting Goods Manufacturers, Portland
- Sporting Goods Stores, Portland
- Sports & Recreational Services, Portland
- Sports Bars & Lounges, Portland
- Sports Clubs, Portland
- Sports Massage, Portland
- Sports Medicine, Portland - Doctors, Physicians & Surgeons
- Sports Promoters & Managers, Portland
- Sports Promotions & Special Events, Portland
- Sports Schools & Training Camps, Portland
- Sportswear Clothing Stores, Portland - Sports Clothes
- Sportswear Manufacturers, Portland
- Sportswear Wholesale, Portland
- Spraying Booths & Equipment, Portland
- Springs Automotive, Portland
- Springs Coil Flat - Industrial Supply & Equipment, Portland
- Springs Coil Flat Etcetera Manufacturers, Portland
- Sprinkler Alarm Systems, Portland - Fire Sprinkler Systems
- Sprinkler System Contractors, Portland - Garden & Lawn Sprinkler System Installation & Repair
- Stadiums, Arenas, Coliseums & Athletic Fields, Portland
- Staffing & Support Services, Portland
- Stainless Steel, Portland
- Stamp Collecting & Coin Dealers , Portland
- State Administrative Agencies, Portland
- State Government, Portland
- Static Control Equipment, Portland
- Stationery & Office Supplies, Portland
- Stationery Engravers, Portland
- Stationery Manufacturers, Portland
- Steak House Restaurants, Portland
- Steam Cleaner - Commercial & Industrial, Portland - Steam Cleaning - Upholstery, Floor, Carpet, etc
- Steam Cleaning Residential, Portland
- Steamship Companies & Agencies, Portland
- Steel & Metal Goods, Portland - Steel Distributors
- Steel Erection Contractors, Portland - Steel Erectors
- Steel Fabrication & Processing Equipment, Portland
- Steel Manufacturers, Portland
- Steel Mills & Blast Furnaces, Portland
- Steel Pipe Tubing & Plate Manufacturers, Portland
- Steel Pipes & Tubes Manufacturers, Portland
- Steel Springs Manufacturers Except Wire, Portland
- Steel Treatment, Portland
- Steel Treatment, Portland
- Steel Used, Portland
- Steel Work Contractors, Portland
- Stereo, Audio & Video Equipment Dealers & Stores, Portland
- Stevedoring Contractors, Portland
- Stitching Services, Portland
- Stock & Bond Brokers & Dealers, Portland
- Stock Photographers, Portland
- Stocks & Bond Brokers, Portland
- Stocks & Bonds Transfer Agents, Portland
- Stone, Portland
- Stone And Glass Products, Portland
- Stone Setting Contractors, Portland
- Storage & Closet Equipment Supplies & Materials, Portland
- Storage Systems & Closet Organizers, Portland
- Store & Retail Fixtures & Display Manufacturers, Portland
- Store Fixtures, Portland
- Store Fixtures & Display Equipment, Portland
- Store Fixtures Manufacturers, Portland
- Store Fronts, Portland - Storefront
- Storm Doors & Windows, Portland
- Stove, Oven, Range & Cooktop Parts & Supplies, Portland
- Stoves & Furnace Equipment, Portland - Fittings & Repair Parts
- Strapping & Strapping Equipment, Portland
- Stress Management & Counseling, Portland
- Structural Engineer, Portland
- Stucco Siding Contractors, Portland - Stucco Repair & Installation
- Stucco Siding, Granite & Grouting Contractors, Portland
- Studio Rental Photographers, Portland
- Submarine Sandwich Restaurants, Portland
- Substance Abuse Clinics, Portland - Alcoholism, Addiction & Drug Abuse Treatment Centers
- Substance Abuse Outpatient Clinics, Portland
- Substance Abuse Services, Portland
- Sugar Refiners, Portland
- Sugar Retail, Portland
- Suicide Prevention Service & Counseling, Portland
- Summer Camps, Portland
- Sunrooms & Solarium Construction Contractors, Portland - Build & Repair
- Sunrooms, Greenhouses, Solariums & Atrium Builders, Portland - Build & Repair
- Support Services, Portland
- Surety & Fidelity Insurance Bonding, Portland
- Surfboard & Windsurfing Equipment Shops, Portland
- Surgical Hospitals, Portland - Surgical Centers
- Surgical Supplies & Equipment, Portland
- Surgical Supplies, Instruments, Tools & Equipment, Portland
- Surplus & Salvage Merchandise, Portland
- Surveyor Services, Portland - Surveying Service
- Surveyors, Portland
- Surveyors Cargo, Portland
- Sushi Restaurants, Portland
- Sweepers & Scrubbers Industrial, Portland - Sweeping Service
- Sweepers & Scrubbers Power, Portland
- Swimming, Portland
- Swimming Lessons & Classes, Portland
- Swimming Pool Covers & Enclosures, Portland
- Swimming Pool, Sauna & Spa Contractors, Portland
- Swimming Pools, Portland
- Swimming Pools Contractors, Portland - Install Inground - Above Ground Pools
- Swimming Pools Repair, Service, Supplies, Sale & Installation, Portland
- Swimming Pools Supplies, Equipment & Accessories, Portland
- Swimming Pools, Hot Tubs & Spas Rental & Leasing, Portland
- Swimwear & Accessories Shops, Portland - Water Sports Equipment
- Synagogues & Temples, Portland
- Synthetic Resins & Rubber, Portland
- Szechuan Restaurants, Portland
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